1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.244 2008/07/26 19:11:23 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27:
28: package Apache::inputtags;
29: use HTML::Entities();
30: use strict;
31: use Apache::loncommon;
32: use Apache::lonlocal;
33: use Apache::lonnet;
34: use LONCAPA;
35:
36:
37: BEGIN {
38: &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
39: }
40:
41: # Initializes a set of global variables used during the parse of the problem.
42: #
43: # @Apache::inputtags::input - List of current input ids.
44: # @Apache::inputtags::inputlist - List of all input ids seen this problem.
45: # @Apache::inputtags::response - List of all current resopnse ids.
46: # @Apache::inputtags::responselist - List of all response ids seen this
47: # problem.
48: # @Apache::inputtags::hint - List of all hint ids.
49: # @Apache::inputtags::hintlist - List of all hint ids seen this problem.
50: # @Apache::inputtags::previous - List describing if specific responseds
51: # have been used
52: # @Apache::inputtags::previous_version - Submission responses were used in.
53: # $Apache::inputtags::part - Current part id (valid only in
54: # <problem>)
55: # 0 if not in a part.
56: # @Apache::inputtags::partlist - List of part ids seen in the current
57: # <problem>
58: # @Apache::inputtags::status - List of problem statuses. First
59: # element is the status of the <problem>
60: # the remainder are for individual <part>s.
61: # %Apache::inputtags::params - Hash of defined parameters for the
62: # current response.
63: # @Apache::inputtags::import - List of all ids for <import> thes get
64: # join()ed and prepended.
65: # @Apache::inputtags::importlist - List of all import ids seen.
66: # $Apache::inputtags::response_with_no_part
67: # - Flag set true if we have seen a response
68: # that is not inside a <part>
69: # %Apache::inputtags::answertxt - <*response> tags store correct
70: # answer strings for display by <textline/>
71: # in this hash.
72: # %Apache::inputtags::submission_display
73: # - <*response> tags store improved display
74: # of submission strings for display by part
75: # end.
76:
77: sub initialize_inputtags {
78: @Apache::inputtags::input=();
79: @Apache::inputtags::inputlist=();
80: @Apache::inputtags::response=();
81: @Apache::inputtags::responselist=();
82: @Apache::inputtags::hint=();
83: @Apache::inputtags::hintlist=();
84: @Apache::inputtags::previous=();
85: @Apache::inputtags::previous_version=();
86: $Apache::inputtags::part='';
87: @Apache::inputtags::partlist=();
88: @Apache::inputtags::status=();
89: %Apache::inputtags::params=();
90: @Apache::inputtags::import=();
91: @Apache::inputtags::importlist=();
92: $Apache::inputtags::response_with_no_part=0;
93: %Apache::inputtags::answertxt=();
94: %Apache::inputtags::submission_display=();
95: }
96:
97: sub check_for_duplicate_ids {
98: my %check;
99: foreach my $id (@Apache::inputtags::partlist,
100: @Apache::inputtags::responselist,
101: @Apache::inputtags::hintlist,
102: @Apache::inputtags::importlist) {
103: $check{$id}++;
104: }
105: my @duplicates;
106: foreach my $id (sort(keys(%check))) {
107: if ($check{$id} > 1) {
108: push(@duplicates,$id);
109: }
110: }
111: if (@duplicates) {
112: &Apache::lonxml::error("Duplicated ids found, problem will operate incorrectly. Duplicated ids seen: ",join(', ',@duplicates));
113: }
114: }
115:
116: sub start_input {
117: my ($parstack,$safeeval)=@_;
118: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
119: push (@Apache::inputtags::input,$id);
120: push (@Apache::inputtags::inputlist,$id);
121: return $id;
122: }
123:
124: sub end_input {
125: pop @Apache::inputtags::input;
126: return '';
127: }
128:
129: sub addchars {
130: my ($fieldid,$addchars)=@_;
131: my $output='';
132: foreach (split(/\,/,$addchars)) {
133: $output.='<a href="javascript:void(document.forms.lonhomework.'.
134: $fieldid.'.value+=\''.$_.'\')">'.$_.'</a> ';
135: }
136: return $output;
137: }
138:
139: sub start_textfield {
140: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
141: my $result = "";
142: my $id = &start_input($parstack,$safeeval);
143: my $resid=$Apache::inputtags::response[-1];
144: if ($target eq 'web') {
145: $Apache::lonxml::evaluate--;
146: my $partid=$Apache::inputtags::part;
147: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"},'<>&"');
148: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
149: my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
150: if ( $cols eq '') { $cols = 80; }
151: my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
152: if ( $rows eq '') { $rows = 16; }
153: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
154: $result='';
155: if ($addchars) {
156: $result.=&addchars('HWVAL_'.$resid,$addchars);
157: }
158: &Apache::lonhtmlcommon::add_htmlareafields('HWVAL_'.$resid);
159: $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" id="HWVAL_'.$resid.'" '.
160: "rows=\"$rows\" cols=\"$cols\">".$oldresponse;
161: if ($oldresponse ne '') {
162:
163: #get rid of any startup text if the user has already responded
164: &Apache::lonxml::get_all_text("/textfield",$parser,$style);
165: }
166: } else {
167: #show past answer in the essayresponse case
168: if ($oldresponse =~ /\S/
169: && &Apache::londefdef::is_inside_of($tagstack,
170: 'essayresponse') ) {
171: $result='<table class="LC_pastsubmission"><tr><td>'.
172: $oldresponse.'</td></tr></table>';
173: }
174: #get rid of any startup text
175: &Apache::lonxml::get_all_text("/textfield",$parser,$style);
176: }
177: } elsif ($target eq 'grade') {
178: my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser,
179: $style);
180: if ($seedtext eq $env{'form.HWVAL_'.$resid}) {
181: # if the seed text is still there it wasn't a real submission
182: $env{'form.HWVAL_'.$resid}='';
183: }
184: } elsif ($target eq 'edit') {
185: $result.=&Apache::edit::tag_start($target,$token);
186: $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
187: $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
188: $result.=&Apache::edit::text_arg
189: ('Click-On Texts (comma sep):','addchars',$token,10);
190: my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser,
191: $style);
192: $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
193: } elsif ($target eq 'modified') {
194: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
195: $safeeval,'rows','cols',
196: 'addchars');
197: if ($constructtag) {
198: $result = &Apache::edit::rebuild_tag($token);
199: } else {
200: $result=$token->[4];
201: }
202: $result.=&Apache::edit::modifiedfield("/textfield",$parser);
203: } elsif ($target eq 'tex') {
204: my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
205: my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
206: if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
207: $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
208: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
209: $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
210: } else {
211: my $TeXwidth=$width_of_box/80;
212: $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
213: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
214: $result.='}}}\vskip 2 mm ';
215: }
216: }
217: return $result;
218: }
219:
220: sub end_textfield {
221: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
222: my $result;
223: if ($target eq 'web') {
224: $Apache::lonxml::evaluate++;
225: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
226: return "</textarea>";
227: }
228: } elsif ($target eq 'edit') {
229: $result=&Apache::edit::end_table();
230: }
231: &end_input;
232: return $result;
233: }
234:
235: sub exam_score_line {
236: my ($target) = @_;
237:
238: my $result;
239: if ($target eq 'tex') {
240: my $repetition = &Apache::response::repetition();
241: $result.='\begin{enumerate}';
242: if ($env{'request.state'} eq "construct" ) {$result.='\item[\strut]';}
243: foreach my $i (0..$repetition-1) {
244: $result.='\item[\textbf{'.
245: ($Apache::lonxml::counter+$i).
246: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
247: }
248: $result.= '\end{enumerate}';
249: }
250:
251: return $result;
252: }
253:
254: sub exam_box {
255: my ($target) = @_;
256: my $result;
257:
258: if ($target eq 'tex') {
259: $result .= '\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
260: $result .= &exam_score_line($target);
261: } elsif ($target eq 'web') {
262: my $id=$Apache::inputtags::response[-1];
263: $result.= '<br /><br />
264: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
265: </textarea> <br /><br />';
266: }
267: return $result;
268: }
269:
270: sub needs_exam_box {
271: my ($tagstack) = @_;
272: my @tags = ('formularesponse',
273: 'stringresponse',
274: 'reactionresponse',
275: 'organicresponse',
276: );
277:
278: foreach my $tag (@tags) {
279: if (grep(/\Q$tag\E/,@$tagstack)) {
280: return 1;
281: }
282: }
283: return 0;
284: }
285:
286: sub start_textline {
287: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
288: my $result = "";
289: my $input_id = &start_input($parstack,$safeeval);
290: if ($target eq 'web') {
291: $Apache::lonxml::evaluate--;
292: my $partid=$Apache::inputtags::part;
293: my $id=$Apache::inputtags::response[-1];
294: if (!&Apache::response::show_answer()) {
295: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
296: my $maxlength;
297: if ($size eq '') { $size=20; } else {
298: if ($size < 20) {
299: $maxlength = ' maxlength="'.$size.'"';
300: }
301: }
302: my $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
303: &Apache::lonxml::debug("oldresponse $oldresponse is ".ref($oldresponse));
304:
305: if (ref($oldresponse) eq 'ARRAY') {
306: $oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
307: }
308: $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
309: $oldresponse =~ s/^\s+//;
310: $oldresponse =~ s/\s+$//;
311: $oldresponse =~ s/\s+/ /g;
312: if ($Apache::lonhomework::type ne 'exam') {
313: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
314: $result='';
315: if ($addchars) {
316: $result.=&addchars('HWVAL_'.$id,$addchars);
317: }
318: my $readonly=&Apache::lonxml::get_param('readonly',$parstack,
319: $safeeval);
320: if (lc($readonly) eq 'yes'
321: || $Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
322: $readonly=' readonly="readonly" ';
323: } else {
324: $readonly='';
325: }
326: my $name = 'HWVAL_'.$id;
327: if ($Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
328: $name = "none";
329: }
330: $result.= '<input onkeydown="javascript:setSubmittedPart(\''.$partid.'\');" type="text" '.$readonly.' name="'.$name.'" value="'.
331: $oldresponse.'" size="'.$size.'"'.$maxlength.' />';
332: }
333: if ($Apache::lonhomework::type eq 'exam'
334: && &needs_exam_box($tagstack)) {
335: $result.=&exam_box($target);
336: }
337: } else {
338: #right or wrong don't show what was last typed in.
339: my $count = scalar(@Apache::inputtags::inputlist)-1;
340: $result='<b>'.$Apache::inputtags::answertxt{$id}[$count].'</b>';
341: #$result='';
342: }
343: } elsif ($target eq 'edit') {
344: $result=&Apache::edit::tag_start($target,$token);
345: $result.=&Apache::edit::text_arg('Size:','size',$token,'5').
346: &Apache::edit::text_arg('Click-On Texts (comma sep):',
347: 'addchars',$token,10);
348: $result.=&Apache::edit::select_arg('Readonly:','readonly',
349: ['no','yes'],$token);
350: $result.=&Apache::edit::end_row();
351: $result.=&Apache::edit::end_table();
352: } elsif ($target eq 'modified') {
353: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
354: $safeeval,'size',
355: 'addchars','readonly');
356: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
357: } elsif ($target eq 'tex'
358: && $Apache::lonhomework::type ne 'exam') {
359: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
360: if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
361: $result='\framebox['.$size.'][s]{\tiny\strut}';
362:
363: } elsif ($target eq 'tex'
364: && $Apache::lonhomework::type eq 'exam'
365: && &needs_exam_box($tagstack)) {
366: $result.=&exam_box($target);
367: }
368: return $result;
369: }
370:
371: sub end_textline {
372: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
373: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
374: elsif ($target eq 'edit') { return ('','no'); }
375: &end_input();
376: return "";
377: }
378:
379: sub start_hiddenline {
380: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
381: my $result = "";
382: my $input_id = &start_input($parstack,$safeeval);
383: if ($target eq 'web') {
384: $Apache::lonxml::evaluate--;
385: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
386: my $partid=$Apache::inputtags::part;
387: my $id=$Apache::inputtags::response[-1];
388: my $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
389: if (ref($oldresponse) eq 'ARRAY') {
390: $oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
391: }
392: $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
393:
394: if ($Apache::lonhomework::type ne 'exam') {
395: $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
396: $oldresponse.'" />';
397: }
398: }
399: } elsif ($target eq 'edit') {
400: $result=&Apache::edit::tag_start($target,$token);
401: $result.=&Apache::edit::end_table;
402: }
403:
404: if ( ($target eq 'web' || $target eq 'tex')
405: && $Apache::lonhomework::type eq 'exam'
406: && &needs_exam_box($tagstack)) {
407: $result.=&exam_box($target);
408: }
409: return $result;
410: }
411:
412: sub end_hiddenline {
413: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
414: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
415: elsif ($target eq 'edit') { return ('','no'); }
416: &end_input();
417: return "";
418: }
419:
420: # $part -> partid
421: # $id -> responseid
422: # $uploadefiletypes -> comma seperated list of extensions allowed or * for any
423: # $which -> 'uploadedonly' -> only newly uploaded files
424: # 'portfolioonly' -> only allow files from portfolio
425: # 'both' -> allow files from either location
426: # $extratext -> additional text to go between the link and the input box
427: # returns a table row <tr>
428: sub file_selector {
429: my ($part,$id,$uploadedfiletypes,$which,$extratext)=@_;
430: if (!$uploadedfiletypes) { return ''; }
431:
432: my $jspart=$part;
433: $jspart=~s/\./_/g;
434:
435: my $result;
436:
437: $result.='<tr><td>';
438: if ($uploadedfiletypes ne '*') {
439: $result.=
440: &mt('Allowed filetypes: <b>[_1]</b>',$uploadedfiletypes).'<br />';
441: }
442: if ($which eq 'uploadonly' || $which eq 'both') {
443: $result.=&mt('Submit a file: (only one file can be uploaded)').
444: ' <br /><input type="file" size="50" name="HWFILE'.
445: $jspart.'_'.$id.'" /><br />';
446: $result .= &show_past_file_submission($part,$id);
447: }
448: if ( $which eq 'both') {
449: $result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
450: }
451: if ($which eq 'portfolioonly' || $which eq 'both') {
452: $result.=$extratext.'<a href='."'".'javascript:void(window.open("/adm/portfolio?mode=selectfile&fieldname='.$env{'form.request.prefix'}.'HWPORT'.$jspart.'_'.$id.'","cat","height=600,width=800,scrollbars=1,resizable=1,menubar=2,location=1"))'."'".'>'.
453: &mt('Select Portfolio Files').'</a><br />'.
454: '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
455: '<br />';
456: $result .= &show_past_portfile_submission($part,$id);
457:
458: }
459: $result.='</td></tr>';
460: return $result;
461: }
462:
463: sub show_past_file_submission {
464: my ($part,$id) = @_;
465: my $uploadedfile= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.uploadedfile"},'<>&"');
466:
467: return if (!$uploadedfile);
468:
469: my $url=$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
470: &Apache::lonxml::extlink($url);
471: &Apache::lonnet::allowuploaded('/adm/essayresponse',$url);
472: my $icon=&Apache::loncommon::icon($url);
473: my $curfile='<a href="'.$url.'"><img src="'.$icon.
474: '" border="0" />'.$uploadedfile.'</a>';
475: return &mt('Currently submitted: <tt>[_1]</tt>',$curfile);
476:
477: }
478:
479: sub show_past_portfile_submission {
480: my ($part,$id) = @_;
481: if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"}!~/[^\s]/){
482: return;
483: }
484: my (@file_list,@bad_file_list);
485: foreach my $file (split(/\s*,\s*/,&unescape($Apache::lonhomework::history{"resource.$part.$id.portfiles"}))) {
486: my (undef,undef,$domain,$user)=&Apache::lonnet::whichuser();
487: my $url="/uploaded/$domain/$user/portfolio$file";
488: my $icon=&Apache::loncommon::icon($url);
489: push(@file_list,'<a href="'.$url.'"><img src="'.$icon.
490: '" border="0" />'.$file.'</a>');
491: if (! &Apache::lonnet::stat_file($url)) {
492: &Apache::lonnet::logthis("bad file is $url");
493: push(@bad_file_list,'<a href="'.$url.'"><img src="'.$icon.
494: '" border="0" />'.$file.'</a>');
495: }
496: }
497: my $files = '<span class="LC_filename">'.
498: join('</span>, <span class="LC_filename">',@file_list).
499: '</span>';
500: my $result = &mt("Portfolio files previously selected: [_1]",$files);
501: if (@bad_file_list) {
502: my $bad_files = '<span class="LC_filename">'.
503: join('</span>, <span class="LC_filename">',@bad_file_list).
504: '</span>';
505: $result.='<br />'.&mt('<span class="LC_error">These file(s) don\'t exist:</span> [_1]',$bad_files);
506: }
507: return $result;
508:
509: }
510:
511: sub valid_award {
512: my ($award) =@_;
513: foreach my $possibleaward ('EXTRA_ANSWER','MISSING_ANSWER', 'ERROR',
514: 'NO_RESPONSE',
515: 'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
516: 'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
517: 'UNIT_FAIL', 'NO_UNIT',
518: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
519: 'BAD_FORMULA', 'SIG_FAIL', 'INCORRECT',
520: 'MISORDERED_RANK', 'INVALID_FILETYPE',
521: 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
522: 'APPROX_ANS', 'EXACT_ANS','COMMA_FAIL') {
523: if ($award eq $possibleaward) { return 1; }
524: }
525: return 0;
526: }
527:
528: {
529: my @awards = ('EXTRA_ANSWER', 'MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
530: 'TOO_LONG',
531: 'UNIT_INVALID_INSTRUCTOR', 'UNIT_INVALID_STUDENT',
532: 'UNIT_IRRECONCIBLE', 'UNIT_FAIL', 'NO_UNIT',
533: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC', 'BAD_FORMULA',
534: 'COMMA_FAIL', 'SIG_FAIL', 'INCORRECT', 'MISORDERED_RANK',
535: 'INVALID_FILETYPE', 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
536: 'APPROX_ANS', 'EXACT_ANS');
537: my $i=0;
538: my %fwd_awards = map { ($_,$i++) } @awards;
539: my $max=scalar(@awards);
540: @awards=reverse(@awards);
541: $i=0;
542: my %rev_awards = map { ($_,$i++) } @awards;
543:
544: sub awarddetail_to_awarded {
545: my ($awarddetail) = @_;
546: if ($awarddetail eq 'EXACT_ANS'
547: || $awarddetail eq 'APPROX_ANS') {
548: return 1;
549: }
550: return 0;
551: }
552:
553: sub hide_award {
554: my ($award) = @_;
555: if (&Apache::lonhomework::show_no_problem_status()) {
556: return 1;
557: }
558: if ($award =~
559: /^(?:EXACT_ANS|APPROX_ANS|SUBMITTED|ASSIGNED_SCORE|INCORRECT)/) {
560: return 1;
561: }
562: return 0;
563: }
564:
565: sub finalizeawards {
566: my ($awardref,$msgref,$nameref,$reverse,$final_scantron)=@_;
567: my $result;
568: if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
569: if ($result eq '' ) {
570: my $blankcount;
571: foreach my $award (@$awardref) {
572: if ($award eq '') {
573: $result='MISSING_ANSWER';
574: $blankcount++;
575: }
576: }
577: if ($blankcount == ($#$awardref + 1)) {
578: return ('NO_RESPONSE');
579: }
580: }
581: if (!$final_scantron && defined($result)) { return ($result); }
582:
583: # if in scantron mode, if the award for any response is
584: # assigned score, then the part gets an assigned score
585: if ($final_scantron
586: && grep {$_ eq 'ASSIGNED_SCORE'} (@$awardref)) {
587: return ('ASSIGNED_SCORE');
588: }
589:
590: # if in scantron mode, if the award for any response is
591: # correct and there are non-correct responses,
592: # then the part gets an assigned score
593: if ($final_scantron
594: && (grep { $_ eq 'EXACT_ANS' ||
595: $_ eq 'APPROX_ANS' } (@$awardref))
596: && (grep { $_ ne 'EXACT_ANS' &&
597: $_ ne 'APPROX_ANS' } (@$awardref))) {
598: return ('ASSIGNED_SCORE');
599: }
600: # these awards are ordered from most important error through best correct
601: my $awards = (!$reverse) ? \%fwd_awards : \%rev_awards ;
602:
603: my $best = $max;
604: my $j=0;
605: my $which;
606: foreach my $award (@$awardref) {
607: if ($awards->{$award} < $best) {
608: $best = $awards->{$award};
609: $which = $j;
610: }
611: $j++;
612: }
613:
614: if (defined($which)) {
615: if (ref($nameref)) {
616: return ($$awardref[$which],$$msgref[$which],$$nameref[$which]);
617: } else {
618: return ($$awardref[$which],$$msgref[$which]);
619: }
620: }
621: return ('ERROR',undef);
622: }
623: }
624:
625: sub decideoutput {
626: my ($award,$awarded,$awardmsg,$solved,$previous,$target)=@_;
627: my $message='';
628: my $button=0;
629: my $previousmsg;
630: my $css_class='orange';
631: my $added_computer_text=0;
632: my %possible_class =
633: ( 'correct' => 'LC_answer_correct',
634: 'charged_try' => 'LC_answer_charged_try',
635: 'not_charged_try' => 'LC_answer_not_charged_try',
636: 'no_grade' => 'LC_answer_no_grade',
637: 'no_message' => 'LC_no_message',
638: );
639:
640: my $part = $Apache::inputtags::part;
641: my $tohandgrade = &Apache::lonnet::EXT("resource.$part.handgrade");
642: my $handgrade = ('yes' eq lc($tohandgrade));
643:
644: my $computer = ($handgrade)? ''
645: : " ".&mt("Computer's answer now shown above.");
646: &Apache::lonxml::debug("handgrade has :$handgrade:");
647:
648: if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
649:
650: if ($solved =~ /^correct/) {
651: $css_class=$possible_class{'correct'};
652: $message=&mt('You are correct.');
653: if ($awarded < 1 && $awarded > 0) {
654: $message=&mt('You are partially correct.');
655: $css_class=$possible_class{'not_charged_try'};
656: } elsif ($awarded < 1) {
657: $message=&mt('Incorrect.');
658: $css_class=$possible_class{'charged_try'};
659: }
660: if ($env{'request.filename'} =~
661: m|/res/lib/templates/examupload.problem$|) {
662: $message = &mt("A score has been assigned.");
663: $added_computer_text=1;
664: } else {
665: if ($target eq 'tex') {
666: $message = '\textbf{'.$message.'}';
667: } else {
668: $message = "<b>".$message."</b>";
669: $message.= $computer;
670: }
671: $added_computer_text=1;
672: if ($awarded > 0) {
673: my ($symb) = &Apache::lonnet::whichuser();
674: if (($symb ne '')
675: &&
676: ($env{'course.'.$env{'request.course.id'}.
677: '.disable_receipt_display'} ne 'yes') &&
678: ($Apache::lonhomework::type ne 'practice')) {
679: $message.=(($target eq 'web')?'<br />':' ').
680: &mt('Your receipt is [_1]',
681: (&Apache::lonnet::receipt($Apache::inputtags::part).
682: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'')));
683: }
684: }
685: }
686: $button=0;
687: $previousmsg='';
688: } elsif ($solved =~ /^excused/) {
689: if ($target eq 'tex') {
690: $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
691: } else {
692: $message = "<b>".&mt('You are excused from the problem.')."</b>";
693: }
694: $css_class=$possible_class{'charged_try'};
695: $button=0;
696: $previousmsg='';
697: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
698: if ($solved =~ /^incorrect/ || $solved eq '') {
699: $message = &mt("Incorrect").".";
700: $css_class=$possible_class{'charged_try'};
701: $button=1;
702: } else {
703: if ($target eq 'tex') {
704: $message = '\textbf{'.&mt('You are correct.').'}';
705: } else {
706: $message = "<b>".&mt('You are correct.')."</b>";
707: $message.= $computer;
708: }
709: $added_computer_text=1;
710: if ($awarded > 0
711: && $env{'course.'.
712: $env{'request.course.id'}.
713: '.disable_receipt_display'} ne 'yes') {
714: $message.=(($target eq 'web')?'<br />':' ').
715: &mt('Your receipt is [_1]',
716: (&Apache::lonnet::receipt($Apache::inputtags::part).
717: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'')));
718: }
719: $css_class=$possible_class{'correct'};
720: $button=0;
721: $previousmsg='';
722: }
723: } elsif ($award eq 'NO_RESPONSE') {
724: $message = '';
725: $css_class=$possible_class{'no_feedback'};
726: $button=1;
727: } elsif ($award eq 'EXTRA_ANSWER') {
728: $message = &mt('Some extra items were submitted.');
729: $css_class=$possible_class{'not_charged_try'};
730: $button = 1;
731: } elsif ($award eq 'MISSING_ANSWER') {
732: $message = &mt('Some items were not submitted.').&Apache::loncommon::help_open_topic('Some_Items_Were_Not_Submitted');
733: $css_class=$possible_class{'not_charged_try'};
734: $button = 1;
735: } elsif ($award eq 'ERROR') {
736: $message = &mt('An error occured while grading your answer.');
737: $css_class=$possible_class{'not_charged_try'};
738: $button = 1;
739: } elsif ($award eq 'TOO_LONG') {
740: $message = &mt("The submitted answer was too long.");
741: $css_class=$possible_class{'not_charged_try'};
742: $button=1;
743: } elsif ($award eq 'WANTED_NUMERIC') {
744: $message = &mt("This question expects a numeric answer.");
745: $css_class=$possible_class{'not_charged_try'};
746: $button=1;
747: } elsif ($award eq 'MISORDERED_RANK') {
748: $message = &mt('You have provided an invalid ranking.');
749: if ($target ne 'tex') {
750: $message.=' '.&mt('Please refer to [_1]',&Apache::loncommon::help_open_topic('Ranking_Problems',&mt('help on ranking problems')));
751: }
752: $css_class=$possible_class{'not_charged_try'};
753: $button=1;
754: } elsif ($award eq 'INVALID_FILETYPE') {
755: $message = &mt('Submission won\'t be graded. The type of file submitted is not allowed.');
756: $css_class=$possible_class{'not_charged_try'};
757: $button=1;
758: } elsif ($award eq 'SIG_FAIL') {
759: my ($used,$min,$max)=split(':',$awardmsg);
760: my $word = ($used < $min) ? 'more' : 'fewer';
761: $message = &mt("Submission not graded. Use $word digits.",$used);
762: $css_class=$possible_class{'not_charged_try'};
763: $button=1;
764: } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
765: $message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
766: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
767: $css_class=$possible_class{'not_charged_try'};
768: $button=1;
769: } elsif ($award eq 'UNIT_INVALID_STUDENT') {
770: $message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
771: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
772: $css_class=$possible_class{'not_charged_try'};
773: $button=1;
774: } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
775: $message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
776: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
777: $css_class=$possible_class{'not_charged_try'};
778: $button=1;
779: } elsif ($award eq 'UNIT_NOTNEEDED') {
780: $message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
781: $css_class=$possible_class{'not_charged_try'};
782: $button=1;
783: } elsif ($award eq 'NO_UNIT') {
784: $message = &mt("Units required").'.';
785: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
786: $css_class=$possible_class{'not_charged_try'};
787: $button=1;
788: } elsif ($award eq 'COMMA_FAIL') {
789: $message = &mt("Proper comma separation is required").'.';
790: $css_class=$possible_class{'not_charged_try'};
791: $button=1;
792: } elsif ($award eq 'BAD_FORMULA') {
793: $message = &mt("Unable to understand formula").'.';
794: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Formula_Answers')};
795: $css_class=$possible_class{'not_charged_try'};
796: $button=1;
797: } elsif ($award eq 'INCORRECT') {
798: $message = &mt("Incorrect").'.';
799: $css_class=$possible_class{'charged_try'};
800: $button=1;
801: } elsif ($award eq 'SUBMITTED') {
802: $message = &mt("Your submission has been recorded.");
803: $css_class=$possible_class{'no_grade'};
804: $button=1;
805: } elsif ($award eq 'DRAFT') {
806: $message = &mt("A draft copy has been saved.");
807: $css_class=$possible_class{'not_charged_try'};
808: $button=1;
809: } elsif ($award eq 'ASSIGNED_SCORE') {
810: $message = &mt("A score has been assigned.");
811: $css_class=$possible_class{'correct'};
812: $button=0;
813: } elsif ($award eq '') {
814: if ($handgrade && $Apache::inputtags::status[-1] eq 'SHOW_ANSWER') {
815: $message = &mt("Nothing submitted.");
816: $css_class=$possible_class{'charged_try'};
817: } else {
818: $css_class=$possible_class{'not_charged_try'};
819: }
820: $button=1;
821: } else {
822: $message = &mt("Unknown message").": $award";
823: $button=1;
824: }
825: my (undef,undef,$domain,$user)=&Apache::lonnet::whichuser();
826: foreach my $resid(@Apache::inputtags::response){
827: if ($Apache::lonhomework::history{"resource.$part.$resid.handback"}) {
828: $message.='<br />';
829: my @files = split(/\s*,\s*/,
830: $Apache::lonhomework::history{"resource.$part.$resid.handback"});
831: my $file_msg;
832: foreach my $file (@files) {
833: $file_msg.= '<br /><a href="/uploaded/'."$domain/$user".'/'.$file.'">'.$file.'</a>';
834: }
835: $message .= &mt('Returned file(s): [_1]',$file_msg);
836: }
837: }
838:
839: if (&Apache::lonhomework::hide_problem_status()
840: && $Apache::inputtags::status[-1] ne 'SHOW_ANSWER'
841: && &hide_award($award)) {
842: $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
843: $css_class=$possible_class{'no_grade'};
844: $button=1;
845: }
846: if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' &&
847: !$added_computer_text && $target ne 'tex') {
848: $message.= $computer;
849: $added_computer_text=1;
850: }
851: if ($Apache::lonhomework::type eq 'practice') {
852: if ($target eq 'web') {
853: $message .= '<br />';
854: } else {
855: $message .= ' ';
856: }
857: $message.=&mt('Submissions to practice problems are not permanently recorded.');
858: }
859:
860: return ($button,$css_class,$message,$previousmsg);
861: }
862:
863: sub markup_unit {
864: my ($unit,$target)=@_;
865: if ($target eq 'tex') {
866: return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}';
867: } else {
868: return "<tt>".$unit."</tt>";
869: }
870: }
871:
872: sub removealldata {
873: my ($id)=@_;
874: foreach my $key (keys(%Apache::lonhomework::results)) {
875: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
876: &Apache::lonxml::debug("Removing $key");
877: delete($Apache::lonhomework::results{$key});
878: }
879: }
880: }
881:
882: sub hidealldata {
883: my ($id)=@_;
884: foreach my $key (keys(%Apache::lonhomework::results)) {
885: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
886: &Apache::lonxml::debug("Hidding $key");
887: my $newkey=$key;
888: $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
889: $Apache::lonhomework::results{$newkey}=
890: $Apache::lonhomework::results{$key};
891: delete($Apache::lonhomework::results{$key});
892: }
893: }
894: }
895:
896: sub setgradedata {
897: my ($award,$msg,$id,$previously_used) = @_;
898: if ($Apache::lonhomework::scantronmode &&
899: &Apache::lonnet::validCODE($env{'form.CODE'})) {
900: $Apache::lonhomework::results{"resource.CODE"}=$env{'form.CODE'};
901: } elsif ($Apache::lonhomework::scantronmode &&
902: $env{'form.CODE'} eq '' &&
903: $Apache::lonhomework::history{"resource.CODE"} ne '') {
904: $Apache::lonhomework::results{"resource.CODE"}='';
905: }
906:
907: if (!$Apache::lonhomework::scantronmode &&
908: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
909: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
910: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
911: return '';
912: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
913: /^correct/
914: || $Apache::lonhomework::scantronmode
915: || &Apache::lonhomework::hide_problem_status() ) {
916: # the student doesn't already have it correct,
917: # or we are in a mode (scantron orno problem status) where a correct
918: # can become incorrect
919: # handle assignment of tries and solved status
920: my $solvemsg;
921: if ($Apache::lonhomework::scantronmode) {
922: $solvemsg='correct_by_scantron';
923: } else {
924: $solvemsg='correct_by_student';
925: }
926: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
927: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
928: }
929: if ( $award eq 'ASSIGNED_SCORE') {
930: $Apache::lonhomework::results{"resource.$id.tries"} =
931: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
932: $Apache::lonhomework::results{"resource.$id.solved"} =
933: $solvemsg;
934: my $numawards=scalar(@Apache::inputtags::response);
935: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
936: foreach my $res (@Apache::inputtags::response) {
937: if (defined($Apache::lonhomework::results{"resource.$id.$res.awarded"})) {
938: $Apache::lonhomework::results{"resource.$id.awarded"}+=
939: $Apache::lonhomework::results{"resource.$id.$res.awarded"};
940: } else {
941: $Apache::lonhomework::results{"resource.$id.awarded"}+=
942: &awarddetail_to_awarded($Apache::lonhomework::results{"resource.$id.$res.awarddetail"});
943: }
944: }
945: if ($numawards > 0) {
946: $Apache::lonhomework::results{"resource.$id.awarded"}/=
947: $numawards;
948: }
949: } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
950: $Apache::lonhomework::results{"resource.$id.tries"} =
951: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
952: $Apache::lonhomework::results{"resource.$id.solved"} =
953: $solvemsg;
954: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
955: } elsif ( $award eq 'INCORRECT' ) {
956: $Apache::lonhomework::results{"resource.$id.tries"} =
957: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
958: if (&Apache::lonhomework::hide_problem_status()
959: || $Apache::lonhomework::scantronmode) {
960: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
961: }
962: $Apache::lonhomework::results{"resource.$id.solved"} =
963: 'incorrect_attempted';
964: } elsif ( $award eq 'SUBMITTED' ) {
965: $Apache::lonhomework::results{"resource.$id.tries"} =
966: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
967: $Apache::lonhomework::results{"resource.$id.solved"} =
968: 'ungraded_attempted';
969: } elsif ( $award eq 'DRAFT' ) {
970: $Apache::lonhomework::results{"resource.$id.solved"} = '';
971: } elsif ( $award eq 'NO_RESPONSE' ) {
972: #no real response so delete any data that got stored
973: &removealldata($id);
974: return '';
975: } else {
976: $Apache::lonhomework::results{"resource.$id.solved"} =
977: 'incorrect_attempted';
978: if (&Apache::lonhomework::show_no_problem_status()
979: || $Apache::lonhomework::scantronmode) {
980: $Apache::lonhomework::results{"resource.$id.tries"} =
981: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
982: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
983: }
984:
985: if (&Apache::lonhomework::show_some_problem_status()) {
986: # clear out the awarded if they had gotten it wrong/right
987: # and are now in an error mode
988: $Apache::lonhomework::results{"resource.$id.awarded"} = '';
989: }
990: }
991: if (defined($msg)) {
992: $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
993: }
994: # did either of the overall awards chage? If so ignore the
995: # previous check
996: if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
997: $Apache::lonhomework::history{"resource.$id.awarded"}) &&
998: ($Apache::lonhomework::results{"resource.$id.solved"} eq
999: $Apache::lonhomework::history{"resource.$id.solved"})) {
1000: # check if this was a previous submission if it was delete the
1001: # unneeded data and update the previously_used attribute
1002: if ( $previously_used eq 'PREVIOUSLY_USED') {
1003: if (&Apache::lonhomework::show_problem_status()) {
1004: delete($Apache::lonhomework::results{"resource.$id.tries"});
1005: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
1006: }
1007: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
1008: #delete all data as they student didn't do anything, but save
1009: #the list of collaborators.
1010: &removealldata($id);
1011: #and since they didn't do anything we were never here
1012: return '';
1013: } else {
1014: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
1015: }
1016: }
1017: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
1018: /^correct/ ) {
1019: #delete all data as they student already has it correct
1020: &removealldata($id);
1021: #and since they didn't do anything we were never here
1022: return '';
1023: }
1024: $Apache::lonhomework::results{"resource.$id.award"} = $award;
1025: if ($award eq 'SUBMITTED') {
1026: &Apache::response::add_to_gradingqueue();
1027: }
1028: }
1029:
1030: sub find_which_previous {
1031: my ($version) = @_;
1032: my $part = $Apache::inputtags::part;
1033: my (@previous_version);
1034: foreach my $resp (@Apache::inputtags::response) {
1035: my $key = "$version:resource.$part.$resp.submission";
1036: my $submission = $Apache::lonhomework::history{$key};
1037: my %previous = &Apache::response::check_for_previous($submission,
1038: $part,$resp,
1039: $version);
1040: push(@previous_version,$previous{'version'});
1041: }
1042: return &previous_match(\@previous_version,
1043: scalar(@Apache::inputtags::response));
1044: }
1045:
1046: sub previous_match {
1047: my ($previous_array,$count) = @_;
1048: my $match = 0;
1049: my @matches;
1050: foreach my $versionar (@$previous_array) {
1051: foreach my $version (@$versionar) {
1052: $matches[$version]++;
1053: }
1054: }
1055: my $which=0;
1056: foreach my $elem (@matches) {
1057: if ($elem eq $count) {
1058: $match=1;
1059: last;
1060: }
1061: $which++;
1062: }
1063: return ($match,$which);
1064: }
1065:
1066: sub grade {
1067: my ($target) = @_;
1068: my $id = $Apache::inputtags::part;
1069: my $response='';
1070: if ( defined $env{'form.submitted'}) {
1071: my (@awards,@msgs);
1072: foreach $response (@Apache::inputtags::response) {
1073: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
1074: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
1075: &Apache::lonxml::debug("keeping $value from $response for $id");
1076: push (@awards,$value);
1077: $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
1078: &Apache::lonxml::debug("got message $value from $response for $id");
1079: push (@msgs,$value);
1080: }
1081: my ($finalaward,$msg) =
1082: &finalizeawards(\@awards,\@msgs,undef,undef,
1083: $Apache::lonhomework::scantronmode);
1084: my $previously_used;
1085: if ( $#Apache::inputtags::previous eq $#awards ) {
1086: my ($match) =
1087: &previous_match(\@Apache::inputtags::previous_version,
1088: scalar(@Apache::inputtags::response));
1089:
1090: if ($match) {
1091: $previously_used = 'PREVIOUSLY_LAST';
1092: foreach my $value (@Apache::inputtags::previous) {
1093: if ($value eq 'PREVIOUSLY_USED' ) {
1094: $previously_used = $value;
1095: last;
1096: }
1097: }
1098: }
1099: }
1100: &Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
1101: &setgradedata($finalaward,$msg,$id,$previously_used);
1102: }
1103: return '';
1104: }
1105:
1106: sub get_grade_messages {
1107: my ($id,$prefix,$target,$status) = @_;
1108:
1109: my ($message,$latemessage,$trystr,$previousmsg);
1110: my $showbutton = 1;
1111:
1112: my $award = $Apache::lonhomework::history{"$prefix.award"};
1113: my $awarded = $Apache::lonhomework::history{"$prefix.awarded"};
1114: my $solved = $Apache::lonhomework::history{"$prefix.solved"};
1115: my $previous = $Apache::lonhomework::history{"$prefix.previous"};
1116: my $awardmsg = $Apache::lonhomework::history{"$prefix.awardmsg"};
1117: &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
1118: if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
1119: &Apache::lonxml::debug('Getting message');
1120: ($showbutton,my $css_class,$message,$previousmsg) =
1121: &decideoutput($award,$awarded,$awardmsg,$solved,$previous,
1122: $target);
1123: if ($target eq 'tex') {
1124: $message='\vskip 2 mm '.$message.' ';
1125: } else {
1126: $message="<td class=\"$css_class\">$message</td>";
1127: if ($previousmsg) {
1128: $previousmsg="<td class=\"LC_answer_previous\">$previousmsg</td>";
1129: }
1130: }
1131: }
1132: my $tries = $Apache::lonhomework::history{"$prefix.tries"};
1133: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1134: &Apache::lonxml::debug("got maxtries of :$maxtries:");
1135: #if tries are set to negative turn off the Tries/Button and messages
1136: if (defined($maxtries) && $maxtries < 0) { return ''; }
1137: if ( $tries eq '' ) { $tries = '0'; }
1138: if ( $maxtries eq '' ) { $maxtries = '2'; }
1139: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
1140: my $tries_text=&mt('Tries');
1141: if ( $Apache::lonhomework::type eq 'survey' ||
1142: $Apache::lonhomework::parsing_a_task) {
1143: $tries_text=&mt('Submissions');
1144: }
1145:
1146: if ($showbutton) {
1147: if ($target eq 'tex') {
1148: if ($env{'request.state'} ne "construct"
1149: && $Apache::lonhomework::type ne 'exam'
1150: && $env{'form.suppress_tries'} ne 'yes') {
1151: $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.
1152: $tries.'/'.$maxtries.'} \vskip 2 mm ';
1153: } else {
1154: $trystr = '\vskip 0 mm ';
1155: }
1156: } else {
1157: $trystr = "<td><nobr>".$tries_text." $tries";
1158: if ($Apache::lonhomework::parsing_a_task) {
1159: } elsif($env{'request.state'} ne 'construct') {
1160: $trystr.="/$maxtries";
1161: } else {
1162: if (defined($Apache::inputtags::params{'maxtries'})) {
1163: $trystr.="/".$Apache::inputtags::params{'maxtries'};
1164: }
1165: }
1166: $trystr.="</nobr></td>";
1167: }
1168: }
1169:
1170: if ($Apache::lonhomework::history{"$prefix.afterduedate"}) {
1171: #last submissions was after due date
1172: $latemessage=&mt(' The last submission was after the Due Date ');;
1173: if ($target eq 'web') {
1174: $latemessage='<td class="LC_answer_late">'.$latemessage.'</td>';
1175: }
1176: }
1177: return ($previousmsg,$latemessage,$message,$trystr,$showbutton);
1178: }
1179:
1180: sub gradestatus {
1181: my ($id,$target,$no_previous) = @_;
1182: my $showbutton = 1;
1183: my $message = '';
1184: my $latemessage = '';
1185: my $trystr='';
1186: my $button='';
1187: my $previousmsg='';
1188:
1189: my $status = $Apache::inputtags::status['-1'];
1190: &Apache::lonxml::debug("gradestatus has :$status:");
1191: if ( $status ne 'CLOSED'
1192: && $status ne 'UNAVAILABLE'
1193: && $status ne 'INVALID_ACCESS'
1194: && $status ne 'NEEDS_CHECKIN'
1195: && $status ne 'NOT_IN_A_SLOT') {
1196:
1197: ($previousmsg,$latemessage,$message,$trystr) =
1198: &get_grade_messages($id,"resource.$id",$target,$status,
1199: $showbutton);
1200: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {
1201: $showbutton = 0;
1202: }
1203: if ( $status eq 'SHOW_ANSWER') {
1204: undef($previousmsg);
1205: }
1206: if ( $showbutton ) {
1207: if ($target ne 'tex') {
1208: $button =
1209: '<input
1210: onmouseup="javascript:setSubmittedPart(\''.$id.'\')"
1211: onsubmit="javascript:setSubmittedPart(\''.$id.'\')"
1212: type="submit" name="submit_'.$id.'"
1213: value="'.&mt('Submit Answer').'" />';
1214: }
1215: }
1216:
1217: }
1218: my $output= $previousmsg.$latemessage.$message.$trystr;
1219: if ($output =~ /^\s*$/) {
1220: return $button;
1221: } else {
1222: if ($target eq 'tex') {
1223: return $button.' \vskip 0 mm '.$output.' ';
1224: } else {
1225: $output =
1226: '<table><tr><td>'.$button.'</td>'.$output;
1227: if (!$no_previous) {
1228: $output.='<td>'.&previous_tries($id,$target).'</td>';
1229: }
1230: $output.= '</tr></table>';
1231: return $output;
1232: }
1233: }
1234: }
1235:
1236: sub previous_tries {
1237: my ($id,$target) = @_;
1238: my $output;
1239: my $status = $Apache::inputtags::status['-1'];
1240:
1241: my $count;
1242: my %count_lookup;
1243:
1244: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
1245: my $prefix = $i.":resource.$id";
1246:
1247: next if (!exists($Apache::lonhomework::history{"$prefix.award"}));
1248: $count++;
1249: $count_lookup{$i} = $count;
1250:
1251: my ($previousmsg,$latemessage,$message,$trystr);
1252:
1253: ($previousmsg,$latemessage,$message,$trystr) =
1254: &get_grade_messages($id,"$prefix",$target,$status);
1255:
1256: if ($previousmsg ne '') {
1257: my ($match,$which) = &find_which_previous($i);
1258: $message=$previousmsg;
1259: my $previous = $count_lookup{$which};
1260: $message =~ s{(</td>)}{ as submission \# $previous $1};
1261: } elsif ($Apache::lonhomework::history{"$prefix.tries"}) {
1262: if (!(&Apache::lonhomework::hide_problem_status()
1263: && $Apache::inputtags::status[-1] ne 'SHOW_ANSWER')
1264: && $Apache::lonhomework::history{"$prefix.solved"} =~/^correct/
1265: ) {
1266:
1267: my $txt_correct = &mt('Correct');
1268: $message =~ s{(<td.*?>)(.*?)(</td>)}
1269: {$1 <strong>$txt_correct</strong>. $3}s;
1270: }
1271: my $trystr = "(".&mt('Try [_1]',$Apache::lonhomework::history{"$prefix.tries"}).")";
1272: $message =~ s{(</td>)}{ $trystr $1};
1273: }
1274: my ($class) = ($message =~ m{<td.*class="([^"]*)"}); #"
1275: $message =~ s{(<td.*?>)}{<td>};
1276:
1277:
1278: $output.='<tr class="'.$class.'">';
1279: $output.='<td align="center">'.$count.'</td>';
1280: $output.=$message;
1281:
1282: foreach my $resid (@Apache::inputtags::response) {
1283: my $prefix = $prefix.".$resid";
1284: if (exists($Apache::lonhomework::history{"$prefix.submission"})) {
1285: my $submission =
1286: $Apache::inputtags::submission_display{"$prefix.submission"};
1287: if (!defined($submission)) {
1288: $submission =
1289: $Apache::lonhomework::history{"$prefix.submission"};
1290: }
1291: $output.='<td>'.$submission.'</td>';
1292: } else {
1293: $output.='<td></td>';
1294: }
1295: }
1296: $output.=&Apache::loncommon::end_data_table_row()."\n";
1297: }
1298: return if ($output eq '');
1299: my $headers =
1300: '<tr>'.'<th>'.&mt('Submission #').'</th><th>'.&mt('Try').
1301: '</th><th colspan="'.scalar(@Apache::inputtags::response).'">'.
1302: &mt('Submitted Answer').'</th>';
1303: $output ='<table class="LC_prior_tries">'.$headers.$output.'</table>';
1304: #return $output;
1305: $output = &Apache::loncommon::js_ready($output);
1306: $output.='<br /><form action=""><center><input type="button" name="close" value="'.&mt('Close Window').'" onClick="window.close()" /></center></form>';
1307:
1308: my $windowopen=&Apache::lonhtmlcommon::javascript_docopen();
1309: my $start_page =
1310: &Apache::loncommon::start_page('Previous Tries', undef,
1311: {'only_body' => 1,
1312: 'bgcolor' => '#FFFFFF',
1313: 'js_ready' => 1,
1314: 'inherit_jsmath' => 1, });
1315: my $end_page =
1316: &Apache::loncommon::end_page({'js_ready' => 1,});
1317: my $prefix = $env{'form.request.prefix'};
1318: $prefix =~ tr{.}{_};
1319: my $function_name = "LONCAPA_previous_tries_".$prefix.
1320: $Apache::lonxml::curdepth.'_'.$env{'form.counter'};
1321: my $result ="<script type=\"text/javascript\">
1322: // <![CDATA[
1323: function $function_name() {newWindow=open('','new_W','width=500,height=500,scrollbars=1,resizable=yes');newWindow.$windowopen;newWindow.document.writeln('$start_page $output $end_page');newWindow.document.close();newWindow.focus()}
1324: // ]]>
1325: </script><a href=\"javascript:$function_name();void(0);\">".&mt("Previous Tries")."</a><br />";
1326: #use Data::Dumper;
1327: #&Apache::lonnet::logthis(&Dumper(\%Apache::inputtags::submission_display));
1328: return $result;
1329: }
1330:
1331: 1;
1332: __END__
1333:
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